Patents Examined by Christopher R Legendre
  • Patent number: 10697471
    Abstract: An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The arrangement allows the duct 100 to be axially short.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 30, 2020
    Assignee: Rolls-Royce PLC
    Inventors: Richard Northall, Anthony J. Rae, Michael S. Krautheim, Alastair D. Walker, Jonathan F. Carrotte, Ian Mariah
  • Patent number: 10690117
    Abstract: The present invention relates to a method for controlling a wind turbine, in particular a method for controlling pitch of one or more blades of a wind turbine and related system. The method comprises collecting first data indicative of a dynamic condition of the first wind turbine blade and the rotor, the first data comprising rotor data and first deflection data, the rotor data being indicative of the azimuth position and rotational velocity of the rotor in a rotor plane perpendicular to the rotor axis, and the first deflection data being indicative of the position, speed and acceleration of one or more parts of the first wind turbine blade.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: June 23, 2020
    Inventor: Mark Olaf Slot
  • Patent number: 10669871
    Abstract: When cold and in the non-coated state, the aerodynamic profile is substantially identical to a nominal profile determined by the Cartesian coordinates X,Y, Zadim given in Table 1, in which the coordinate Zadim is the quotient D/H where D is the distance of the point under consideration from a first reference plane P0 situated at the base of the nominal profile, and H is the height of said profile measured from the first reference plane to a second reference plane P1. The measurements D and H are taken radially relative to the axis of the turbine, while the X coordinate is measured in the axial direction of the turbine.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: June 2, 2020
    Assignee: Safran Aircraft Engines
    Inventors: Maxime Didier Delabriere, Daniel Marius Man, Pascal Pierre Nicolas Routier, Guillaume Jochen Scholl, Renaud Gabriel Constant Royan
  • Patent number: 10662919
    Abstract: A rotor hub for a wind turbine includes a hub frame having a blade attachment site configured for attachment of a wind turbine blade to the hub frame, and a dispenser coupled to the hub frame and containing one or more fasteners, wherein the one or more fasteners is selectively releasable from the dispenser to facilitate attachment of the wind turbine blade to the hub frame. A plurality of dispensers may be provided, each having a plurality of fasteners disposed therein. The dispensers may be coupled to the hub frame and distributed about the periphery of the blade attachment site. A method of attaching a blade to a rotor hub includes positioning the blade adjacent the attachment site on the hub frame, and securing the blade to the hub frame at the attachment site using the fasteners from the dispensers.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 26, 2020
    Assignee: Vestas Wind Systems A/S
    Inventor: Høgne Joensen
  • Patent number: 10662814
    Abstract: A shroud for a turbomachine stator includes a first portion and a second portion configured to sandwich around at least a portion of a stator vane assembly, a first pin hole defined in the first portion at an angle relative to an axial direction of the turbomachine, and a second pin hole defined in the second portion at the angle of the first portion, wherein the first pin hole is aligned and in communication with the second pin hole to accommodate a pin configured to be seated in the first and second pin holes.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 26, 2020
    Inventor: David Maliniak
  • Patent number: 10647410
    Abstract: A spinner assembly includes a cone-shaped member having a plurality of blade openings. The cone-shaped member is receivable about a shaft at a first location. A bulkhead frame is connected to the cone-shaped member. At least one strut is configured to couple the bulkhead frame to the shaft at a second location. The at least one strut includes at least one arm having a longitudinal rigid member and at least one flexure region that defines an axis about which the at least one arm bends.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: May 12, 2020
    Inventors: Robert Higbie, David Littlejohn
  • Patent number: 10641275
    Abstract: This compressor is provided with a motor, a plurality of shafts each having a gear, a housing (30), and a plurality of impeller sections. The housing (30) includes a first housing element (31) and a second housing element (32) connectable to the first housing element from above and separable from the first housing element. A first upper end surface support section (41) is formed on an upper end surface of the first housing element (31). The housing (30) has at least one insertion support section (40A) having a shape that enables insertion of the gear and that supports the shaft, at a height position different from a height position of the first upper end surface support section (41).
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: May 5, 2020
    Assignee: Kobe Steel, Ltd.
    Inventor: Koumei Fujioka
  • Patent number: 10626881
    Abstract: A compressor-impeller fixing nut has a tubular shape, and includes: a curved-surface shaped portion disposed in a first range from a first end side in an axial direction, the curved-surface shaped portion having an outer diameter which increases toward a second end side in the axial direction and including an outer peripheral surface having a curved shape which protrudes outward in a radial direction in a cross section along the axial direction; and a nut portion disposed in a second range closer to the second end side from the first range in the axial direction, the nut portion having an outer peripheral surface with a nut shape. An expression (D1max?D1min)/2<L is satisfied, where L is a length of the first range in the axial direction, and D1max is a maximum value and D1min is a minimum value of the outer diameter of the curved-surface shaped portion in the first range.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 21, 2020
    Inventors: Yoshihiro Tanabe, Yasuhiro Wada
  • Patent number: 10605257
    Abstract: A fan system includes a rotor having plurality of blades and a ring airfoil, the plurality of blades being rotatably joined to a hub and the ring airfoil. The fan system may include a second contra-rotationally disposed rotor having a plurality of blades and a ring airfoil. The first and second ring airfoils having a cambered shape and an angle of attack between about ?5 degrees and about 45 degrees, more preferably between about 5 degrees and about 30 degrees. Optionally, an outlet guide vane may be mounted rearward of the one or more rotors having a ring airfoil.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 31, 2020
    Assignee: Rolls-Royce Corporation
    Inventors: Bronwyn Power, Jonathan M. Rivers
  • Patent number: 10583914
    Abstract: Sounds are generated by an aerial vehicle during operation. For example, the motors and propellers of an aerial vehicle generate sounds during operation. Systems, methods, and apparatus may actively adjust the position and/or configuration of one or more propeller blades of a propulsion mechanism to generate different sounds and/or lifting forces from the propulsion mechanism.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: March 10, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Brian C. Beckman, John Raymond Brodie, Vedran Coralic, Taylor David Grenier, Gur Kimchi, Dominic Timothy Shiosaki, Ricky Dean Welsh, Richard Philip Whitlock
  • Patent number: 10577955
    Abstract: A stage for a compressor or a turbine in a turbine engine can include an annular row of airfoils radially extending from corresponding platforms, where each platform can include a fore edge and aft edge and each airfoil can include a leading edge and trailing edge. At least one of the platforms can have a scalloped flow surface including a bulge and a trough.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: March 3, 2020
    Assignee: General Electric Company
    Inventors: Connor Marie Shirley, Harjit Singh Hura, Paul Hadley Vitt
  • Patent number: 10570917
    Abstract: A fan blade includes a metallic body, a first composite cover, and a second composite cover. The metallic body may have a first side, a second side, a plurality of first retention slots, and a plurality of second retention slots, in accordance with various embodiments. The first and second retention slots may extend from the first side to the second side of the metallic body. The first composite cover may be coupled to the first side of the metallic body and may include a plurality of first fingers that extend through the first retention slots and are coupled to the second side of the metallic body. The second composite cover may be coupled to the second side of the metallic body and may include a plurality of second fingers that extend through the second retention slots and are coupled to the first side of the metallic body.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: February 25, 2020
    Inventor: Michael A. Weisse
  • Patent number: 10563518
    Abstract: An apparatus and method for an airfoil for a gas turbine engine includes a trailing edge cooling circuit utilizing a plurality of trailing edge ejection holes. The ejection holes can include a circumferentially radiused inlet, a converging section, a metering section, and a diverging section to improve airfoil cooling as well as castability.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: February 18, 2020
    Assignee: General Electric Company
    Inventors: Douglas Gerard Konitzer, Matthew Lee Krumanaker, Weston Nolan Dooley, James Herbert Deines
  • Patent number: 10563543
    Abstract: The present disclosure provides an exhaust diffuser for a gas turbine engine. The exhaust diffuser may include a hub, a casing, and a strut extending between the hub and the casing. The hub may include an angled configuration about the strut and a substantially flat configuration downstream of the angled configuration.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: February 18, 2020
    Assignee: General Electric Company
    Inventors: Santhosh Kumar Vijayan, Deepesh Dinesh Nanda, Manjunath Bangalore Chengappa
  • Patent number: 10557374
    Abstract: A gas turbine includes a main shaft connecting a turbine to a compressor and an additional shaft extending coaxially to the main shaft. The additional shaft has a first shaft section connected to the compressor and a second shaft section connected to the turbine, the shaft sections separated from each other by a gap. At mutually facing ends, the two shaft sections have mutually corresponding structures. The gap been the two shaft sections is dimensioned such that, upon a break of the main shaft, the mutually corresponding structures of the mutually facing ends of the two shaft sections come into interaction and rotate relative to one another as a result of their differing rotational speeds. The mutually corresponding structures are formed such that the two shaft sections are moved away from one other in the event of twisting of the two shaft sections.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 11, 2020
    Inventors: Martin Panzner, Enrique Sielaff
  • Patent number: 10539150
    Abstract: A centrifugal fan with dual outlets in the same direction includes a fan frame, an impeller, and a motor. The fan frame includes an upper cover, a base plate and a first air deflector. The base plate and the upper cover are connected to form an accommodating space and an air outlet plane. The first air deflector is arranged near the air outlet plane and divides the air outlet plane into a first air outlet and a second air outlet. The impeller is disposed in the accommodating space. The impeller and the side wall of the fan frame form a flow channel therebetween. The motor is connected to the impeller and drives it to rotate. The first air deflector extends inward of the flow channel from the air outlet plane and the end of the first air deflector has a first guide portion, which is a slanted surface.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: January 21, 2020
    Inventors: Wei-I Ling, Shih-Kang Hsiung, Meng-Yu Chen
  • Patent number: 10532802
    Abstract: A propulsion assembly includes an engine surrounded by a nacelle, structure for draining the fluids from the engine and structure for guiding said fluids to a retention box. The retention box is arranged outside the engine and has a cavity for storing drained fluids. The retention box is fixed to a cowling of the nacelle and supported thereby.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: January 14, 2020
    Inventors: Julien Sayn-Urpar, Hervé Jean Albert Mouton, Julien Pavillet
  • Patent number: 10533422
    Abstract: A gas turbine disk includes a rotor and a tie-bolt. The rotor includes a plurality of blades and a plurality of disks. The plurality of blades are disposed on outer circumferential surfaces of the plurality of disks. The tie-bolt is disposed along a center axis of the rotor and through a bore defined through hollow portions of the plurality of disks, so as to couple the plurality of disks to each other. A diameter of the bore is larger than a diameter of the tie-bolt. The plurality of disks respectively include a groove spaced from the bore in the circumferential direction of the bore, the groove being elongated in the axial direction of the bore such that cooling air flows through an internal space thereof.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: January 14, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Sungchul Jung
  • Patent number: 10526916
    Abstract: A heat exchanger for use in a gas turbine engine has a central body including an inlet manifold and at least one tube providing an outlet manifold, and a plurality of tubes communicating holes in an outer periphery of the inlet manifold to holes in an outer periphery of the outlet manifold, and passages for cooling air to pass across the tubes. A gas turbine engine is also disclosed.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: January 7, 2020
    Assignee: United Technologies Corporation
    Inventors: Frederick M. Schwarz, Paul W. Duesler
  • Patent number: 10527060
    Abstract: Variable stator vane assemblies and stator vanes thereof having a local swept leading edge are provided. The variable stator vane comprises an airfoil disposed between spaced apart inner and outer buttons centered about a rotational axis. The inner and outer buttons each have a button forward edge portion. The airfoil includes leading and trailing edges, pressure and suction sides, and a root and a tip. The leading edge, at least a portion of which extends forward of the buttons, includes a local forward sweep at the root, thereby forming a locally swept root of the leading edge thereat. The button forward edge portion of the inner button is substantially vertically aligned with the locally swept leading edge root. Methods are also provided for minimizing endwall leakage in the variable stator vane assembly using the same.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 7, 2020
    Inventors: Bruce David Reynolds, Timothy Gentry, Richard David Conner